- happening by chance or accident; not planned; unexpected: an accidental meeting.
- nonessential; incidental; subsidiary: accidental benefits.
- relating to or indicating sharps, flats, or naturals.
- a nonessential or subsidiary circumstance, characteristic, or feature.
- a sign placed before a note indicating a chromatic alteration of its pitch.
- occurring by chance, unexpectedly, or unintentionally
- nonessential; incidental
- denoting sharps, flats, or naturals that are not in the key signature of a piece
- (of a property) not essential; contingent
- an incidental, nonessential, or supplementary circumstance, factor, or attribute
- a symbol denoting a sharp, flat, or natural that is not a part of the key signature
